(a) Draw an edge dislocation in a simple cubic structure and define its Burgers' vector, b. (You may copy an available figure if you are not an accomplished artist.) (b) Describe how the dislocation can move by "glide" and "climb". (c) Describe the force you would apply to the crystal to cause plastic deformation via dislocation glide. What is the optimal direction of the applied force? In what direction would the dislocation move